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📄 ChainMap.js

📊 Analysis Summary

Metric	Count
🔧 Functions	3
🧱 Classes	1
📊 Variables & Constants	4

📚 Table of Contents

• Variables & Constants
• Functions
• Classes

🛠️ File Location:

📂 src/renderers/common/ChainMap.js

Variables & Constants

Name	Type	Kind	Value	Exported
map	WeakMap<any, any>	let/var	this.weakMap	✗
map	WeakMap<any, any>	let/var	this.weakMap	✗
key	any	let/var	keys[ i ]	✗
map	WeakMap<any, any>	let/var	this.weakMap	✗

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Functions

ChainMap.get(keys: any[]): any

JSDoc:

/**
     * Returns the value for the given array of keys.
     *
     * @param {Array<Object>} keys - List of keys.
     * @return {any} The value. Returns `undefined` if no value was found.
     */

Parameters:

• keys any[]

Returns: any

Calls:

• map.get

Code

get( keys ) {

        let map = this.weakMap;

        for ( let i = 0; i < keys.length - 1; i ++ ) {

            map = map.get( keys[ i ] );

            if ( map === undefined ) return undefined;

        }

        return map.get( keys[ keys.length - 1 ] );

    }

ChainMap.set(keys: any[], value: any): ChainMap

JSDoc:

/**
     * Sets the value for the given keys.
     *
     * @param {Array<Object>} keys - List of keys.
     * @param {any} value - The value to set.
     * @return {ChainMap} A reference to this Chain Map.
     */

Parameters:

• keys any[]
• value any

Returns: ChainMap

Calls:

• map.has
• map.set
• map.get

Code

set( keys, value ) {

        let map = this.weakMap;

        for ( let i = 0; i < keys.length - 1; i ++ ) {

            const key = keys[ i ];

            if ( map.has( key ) === false ) map.set( key, new WeakMap() );

            map = map.get( key );

        }

        map.set( keys[ keys.length - 1 ], value );

        return this;

    }

ChainMap.delete(keys: any[]): boolean

JSDoc:

/**
     * Deletes a value for the given keys.
     *
     * @param {Array<Object>} keys - The keys.
     * @return {boolean} Returns `true` if the value has been removed successfully and `false` if the value has not be found.
     */

Parameters:

• keys any[]

Returns: boolean

Calls:

• map.get
• map.delete

Code

delete( keys ) {

        let map = this.weakMap;

        for ( let i = 0; i < keys.length - 1; i ++ ) {

            map = map.get( keys[ i ] );

            if ( map === undefined ) return false;

        }

        return map.delete( keys[ keys.length - 1 ] );

    }

---

Classes

ChainMap

Class Code

class ChainMap {

    /**
     * Constructs a new Chain Map.
     */
    constructor() {

        /**
         * The root Weak Map.
         *
         * @type {WeakMap}
         */
        this.weakMap = new WeakMap();

    }

    /**
     * Returns the value for the given array of keys.
     *
     * @param {Array<Object>} keys - List of keys.
     * @return {any} The value. Returns `undefined` if no value was found.
     */
    get( keys ) {

        let map = this.weakMap;

        for ( let i = 0; i < keys.length - 1; i ++ ) {

            map = map.get( keys[ i ] );

            if ( map === undefined ) return undefined;

        }

        return map.get( keys[ keys.length - 1 ] );

    }

    /**
     * Sets the value for the given keys.
     *
     * @param {Array<Object>} keys - List of keys.
     * @param {any} value - The value to set.
     * @return {ChainMap} A reference to this Chain Map.
     */
    set( keys, value ) {

        let map = this.weakMap;

        for ( let i = 0; i < keys.length - 1; i ++ ) {

            const key = keys[ i ];

            if ( map.has( key ) === false ) map.set( key, new WeakMap() );

            map = map.get( key );

        }

        map.set( keys[ keys.length - 1 ], value );

        return this;

    }

    /**
     * Deletes a value for the given keys.
     *
     * @param {Array<Object>} keys - The keys.
     * @return {boolean} Returns `true` if the value has been removed successfully and `false` if the value has not be found.
     */
    delete( keys ) {

        let map = this.weakMap;

        for ( let i = 0; i < keys.length - 1; i ++ ) {

            map = map.get( keys[ i ] );

            if ( map === undefined ) return false;

        }

        return map.delete( keys[ keys.length - 1 ] );

    }

}

Methods

get(keys: any[]): any

Code

get( keys ) {

        let map = this.weakMap;

        for ( let i = 0; i < keys.length - 1; i ++ ) {

            map = map.get( keys[ i ] );

            if ( map === undefined ) return undefined;

        }

        return map.get( keys[ keys.length - 1 ] );

    }

set(keys: any[], value: any): ChainMap

Code

set( keys, value ) {

        let map = this.weakMap;

        for ( let i = 0; i < keys.length - 1; i ++ ) {

            const key = keys[ i ];

            if ( map.has( key ) === false ) map.set( key, new WeakMap() );

            map = map.get( key );

        }

        map.set( keys[ keys.length - 1 ], value );

        return this;

    }

delete(keys: any[]): boolean

Code

delete( keys ) {

        let map = this.weakMap;

        for ( let i = 0; i < keys.length - 1; i ++ ) {

            map = map.get( keys[ i ] );

            if ( map === undefined ) return false;

        }

        return map.delete( keys[ keys.length - 1 ] );

    }

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